In the diagram, triangle $ABC$ is a right-angled triangle where $\angle BAC=90{}^\circ $. F

Question

In the diagram, triangle $ABC$ is a right-angled triangle where $\angle BAC=90{}^\circ $. Find the length of $BC$. Hence, find the area of triangle $BCD$.

Accepted Answer

(i) $8.60\text{ cm}$ (ii) $34.6\text{ cm}^2$

Principles of Plane Trigonometry: Area, Sides, and Angles

Principles of Plane Trigonometry: Area, Sides, and Angles

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